Android Question Notification Listener - accessing the notifications

Hey,
I was looking at the Notification Listener Library. I was wondering with this library , is there a way I can get current device notifications , hide them, and then display them again later. My alternate method was going to be toggling Airplane mode , so the device wouldn't be able to retrieve notification , but then discovered it's not possible after Android 4.4 Any other ways I could do it?